Why is Shen's winrate so good this season?

When seeing the changes they made to the new season, I thought it would have been a huge indirect nerf to Shen top, since now there are less opportunities to ult without griefing quest or giving a lot of gold because of crystallization and plates, but it doesn't seem the case since he has one of the best winrates in the game right now. What could be the cause of that?